MythosLoader 1.0 released: run several D2R clients on one PC

Update: the current version is 1.2.7. Tile your games and they reopen where you left them, close or relaunch them all in one click after a crash, give alts lighter game settings, and look up any runeword in the new Runewords tab. Release notes: 1.1.x · 1.2.x

MythosLoader 1.0 is out. It is a free Windows launcher that lets you run several Diablo II: Resurrected clients on one PC at the same time, one per Battle.net account, and tells the windows apart for you.

Download: https://github.com/d2r-mythos/MythosLoader/releases/latest
Readme and FAQ: https://github.com/d2r-mythos/MythosLoader

• Add a loader two ways. Paste a login token (it starts with US-, EU- or KR-), or log in on Battle.net's own page shown inside the app. Authenticator and e-mail codes work as they do in your browser.
• Saved logins. You log in once per account. The saved login is encrypted for your Windows user and refreshed by itself after every launch, so the next launch is one click.
• Multi-launch. Launch one loader, the ones you ticked, or all of them. They start one after another, each waiting for the previous one to log in, with live progress and a Cancel button.
• Window titles. Every game window is renamed from a template such as D2R: {name}, with a per-loader override, so the taskbar and Alt+Tab show which client is which.
• Find. Brings a client to the front, even when it is minimised or on another monitor.
• Launch options. Windowed, no sound, mods and more, set for all loaders or per loader, with a live preview of the exact command line.
• Region switch. Move a loader between Americas, Europe and Asia without adding it again.
• Intro skip. No more logo videos, globally or per loader.
• Right-click menu on every loader: launch, find window, launch options, region, intro skip, log in again, remove.

• It never asks for, sees or stores your Battle.net password. You type it on Battle.net's page; MythosLoader only receives the resulting login.
• It never reads or changes the game's memory, never injects anything, never automates gameplay.
• It never sends one keystroke or click to several clients. Blizzard bans input broadcasting, and MythosLoader has no such feature.
• It never sends your data anywhere. The only network traffic is Battle.net's own login page.

Blizzard allows playing several accounts at once. MythosLoader is still a third-party tool and is not affiliated with or endorsed by Blizzard, so use it at your own risk.

1. Download MythosLoader-1.0.0-win-x64.zip from the release page above.
2. Unzip it anywhere. There is no installer and it does not need administrator rights.
3. Run MythosLoader.exe. It finds your game folder by itself; you can also set it in Settings.
4. Click Add loader and paste a token or log in on the Battle.net page. Repeat for each account.
5. Tick your loaders and press Launch selected, or Launch all.

Requirements: Windows 10 (version 1809 or newer) or Windows 11, 64-bit. Diablo II: Resurrected installed through Battle.net. One Battle.net account that owns the game per client you want to run. Enough PC for several clients, since each one is a full copy of the game.

Good to know: logging into an account through the normal Battle.net app uses up the login MythosLoader saved for it. The loader will then say Log in again, and one click fixes it.

• Not code-signed yet. Windows SmartScreen will warn you. Click More info, then Run anyway, after checking your download (below). A signed build is planned.
• Limited testing against live game sessions so far. This is a first release. If a launch does not work for you, tell us and include what happened and when.
• Saved logins are encrypted for your Windows user. That protects them from other users of the PC and from anyone copying the files, but not from other software running under your own Windows account. Keep your PC clean.

The release page lists a SHA-256 checksum. For the 1.0.0 zip it is:

d2f0fba9f95a21620599a380f780b0ae6e5c9cc2db7c28b963402da4fb4d7f63  MythosLoader-1.0.0-win-x64.zip

In PowerShell, run this next to the file and compare:

Get-FileHash .\MythosLoader-1.0.0-win-x64.zip -Algorithm SHA256

• Identify: a gold label drawn over every running client so you can see which is which
• Focus hotkeys (Ctrl+Alt+1 to 9) to jump straight to a client
• System tray menu for launching and focusing
• Groups such as "MF team" or "Mules", launched in one go, and saved window layouts
• Import from D2RML
• A code-signed build

Reply in this thread with questions, bugs and ideas. Bug reports are most useful with your Windows version, how many clients you launched, and what the loader's row said when it failed. Never post a login token: treat it like a password.

You can also reach us on Discord: https://discord.com/invite/d2rmythos